Stove door and frame construction



Nov. 10, 1-925- A. H. TINNERMAN STOVE DOOR AND FRAME CONSTRUCTION FiledDec. 6, 192a 4 .b/ I ZA TOB @654 JM ouenaaA/( 0121;

50 slightly ajar;

. Patented Nov. 10, 1925.

PATENT [or-rice.

ALBERT H. TINNE RMAN, OF CLEVELAND, OHIO.

STOVE DOOR AND FRAME CONSTRUCTION.

Application filed December 8, 1323: Serial No. 678,870.

To all whom it may concern:

Be it known that I, ALB'nR'rH. TINNER- MAN, a citizen of the UnitedStates residing at Cleveland, in the county of uyahoga 43 and State-ofOhio,' have invented a certain new and useful Im rovement in a StoveDoor and Frame 'onstruction, of which the following is a full, clear,and exactde- I scription reference being had to the accompanymg .drawinThis invention re ates to-stoves and has for its general object theprovision of a frame construction comprising the front of a stove suchas a as range, embodyin features which are' 'rected to prevent t e; de-

struction or damaging of enamel finish of -'the frame consequent-to theescape of hotgases from the oven or ovens thereof when the doors areopen. It is the present custdm to manufacture ranges in such mannerthat'the panels and frame members and in fact all ex osed parts of thestove may be enameled or highly polished for the sake of'ap arance andcleanliness. It is desirable t at a white'enamelfinish be provided onthe front'portions' of the stove and particularly on the doors.

A vitreousand. door frames thereof. enamel which is more or less brittleand preferably white in color gives the most desirable finish, but themanufacture and service upkeep. of stoves so finished involves 1 manyattendant difiiculties after the, stovesare placed in domestic service.

tion of that portion of the enamel finish which is immediately above theoven doors due to impinginghot gases upon the enameled surfaces. whenthe oven doors areopened'or when the doors are slightly ajar.

- The purpose of this invention therefore is to rovide an oven door andframe con- StIllCt10n WhiOh will protect such enameled surfacing bycausing the hot escaping gases tobe-dire'cted aiwa from these enameledsurfaces which will insure the prevention of the escaping ofhot gasesfrom the upper portions of the oven, the doors" are more speclfic objectof my invention is .the provision of a simple, and effectivemeans'embodiedin-"a stove frame construction in such manner as tobe onlyan inciden- 5 tal detail'in themanufacturing of the stove "els 15 havingan enamel One of the principal difficulties encountered by.manufacturers is the rapid destruc-.

parts whereby I obtain the desired result' economically.

" Other objects of my invention will hereind after be set forth in thefollowing descriptionwhich refers to theaccomtpanymg drawingillustrating a preferre embodiment thereof. The essentlalcharacteristics are summarized'in the claims.-

either a casting or a stamped or pressed I metal member .which consttutes the supporting frame for both the bakIIIg OVQIfI 0 door andbroiler door in the usual ty gas ran es, thebaking oven usually eingarrange above the broiler. As shown in the drawings I, referably formthe front of thestove by e use of a cast frame 10 which constitutes asupport for the oven door 11 and lower oven or broiler door 12. Thesedoors are ,attached to the front frame memberlO byisuitable hinge ieces13 which engage lugs 14 depending romthe lower corners of the doorframes. "The door frames, 11 and '12 are usually. P lished 01'' nickeledand are provided wit central panfinish. 3

It is the practice to have an enamel finish on the frame 10 whichcorresponds to the finish of the door panel 15 and it. is this enamel onthe. frame 10- which is particularly subjected to damage by thehot'gases escaping from the upper regions A and B of the baking oven anbroiling ovenres ec- 'tively when the doors .are. open. It wil be seenfrom the drawings that as the doors .swing open the gases will escapethrough the upper portion of the door openings and be concentrated alongthe portions 10 or 10" of the frame 10 thus causing a checking or adiscoloration of the enamel -finish after the stove is used a shortperiod in the home.

I overcome the above mentioned difficulty in a very simple manner byforming flanges 'or bafiles on the, frame 10 which extend around the uper half of the door opening edges thereo and such flanging may take anyform conducive to economical manufacturing. As shown in the drawings theframe 10 is provided with integrally formed flange portions 20 and 21about the margin of the baking oven and broiler door openings whichextend outwardly a suflicient distance to direct the hot gases escapingfrom the oven regions A and B away from the enameled surfaces-10 and 10of the frame. When the hot gases, as indicated by the full line arrowsin Fig. 3,

escape outwardly and upwardly through the oven door opening the flange20 will be tion of the air in this space will take place 1 face 10.

due to the rapid outward and upward movement of the hot gases, thuscausing cool air to flow inwardly over the enameled sur- The provisionof the flanges 2.0

and 21 in, the manner described, it will be seen has a two-fold effectin maintaining protection for the enameled surfacing in that whileguiding the hotgases away therefrom, the movement of the hot gasescauses a flow of cool air over .these surfaces.

If desired, the lining 30 of the oven doors may be so formed around therims thereof th t a spring edge 31 may be formed, which, w on the dooris closed ,will engage the flanges 20 and 21 thus resulting in aneffective sealing action when the doors are closed, If throughcarelessness of the user the door is not completely closed the liningedges 31 will be effective in preventing the escape of the hot gases.

A stove oven constructed in accordance with the foregoing provisions, asractice' has shown, will retain the enamel nish in thoseregions whichheretofore have shown' marked discolorations and'checking of the enamel.

I claim: I

1. In a stove construction, the combination of a front frame memberhaving exposed surfaces of enamel, said frame having an upper and alower oven door opening formed therein, doors mounted on said frame forclosing the openings and grooves and flanges formed on the frame saidflanges extending outwardly from said openings, a portion of the doorseating into the groove and overlying the flanges when the doors areclosed whereby when the doors are opened hot escaping'ga'ses from theoven may be guided away from the ex- --posed surfaces of the frame.

2. In a stove construction, the/combination of a frame member having anopening,

on the doors for engaging said gas guiding the groove, drawscomparatively cool air a closure member therefore, said frame hav-" ing.a finished surface subject to damage by contact with hot gasesand meansincluding a flange and a channeled air pocket between the flange andsaid finished surface associated with the opening at the upper portionof the perimeter thereof for insu-- lating hot gases escapingtherethrough from such finished surfaces. 79 3. In an ovenconstructiomadoor frame, having an upper and a lower door opening formed therein,doors mounted ,on the frame for, closing said openings, means formedabout the perimeter of the door openings for guiding hot gases escapingthrough the doorways ,away from the outer exposed surfaces of the frameand means means when the doors are slightly ajar. 9

4:. In an oven construction, a front door frame having an upper and alower oven door opening, doors supported thereby for closing saidopenings, there being flanges extending outwardly from the frame aroundthe perimeter of the openings and means associated with door linings forengaging said flanges to prevent the escape of hot gases when the doorsare slightly ajar.

5. In a stove construction'the combination ofa front frame member havingan 'oven door opening and an enameled surface extending across the topof the frame adjacent the door opening, an oven door mounted on theframe, said frame having a flange extending downwardly at an obtuseangle with the enameled surface and outwardly beyond said surface when{the door is open whereby buoyant hot gases are deflected beyond theenameled surface in escaping from the oven" 6. In a stot e construction,an oven door frame,-the exposed surface adjacent the top of the doorframe, adapted to be coated with enamel subject to cracking'whencontactin with hot gases, a groove at the edges of sai surfaces and aflange extending outwardly at an angle to said surfaces, the flangeforming the side wall of the groove and a door having a lip portionadapted to enter the groove when the door is closed, whereby when thedoor is'opened, vacuum caused b the withdrawal of the lip from over theenameled surfaces, the flanges cooperating with the groove in protectingthe enameled surface byv deflecting the 'heated gases outwardly awayfrom the surfaces.

In testimony whereof, I hereunto aflix my signature.

ALBERT H. TINNERMAN.

